PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S12BJack,telephone

Switchcraft Inc. · NSN 5935-00-889-7895 · FSC 5935 · No Item Name Available
Verified by PartsTable
NSN 5935-00-889-7895 — this item is cataloged by the U.S. Government under National Stock Number 5935-00-889-7895. Primary manufacturer part number: S12B.
Features
  • Jack,telephone — FSC 5935
  • Surface Treatment: TIN TERMINAL
  • Material: NICKEL ALLOY SPRING
  • Nominal Thread Size: 0.375 INCHES IN
  • Material: SILVER CONTACT
  • Accommodated Finger Type: THREE CONDUCTOR, SLENDER SPHERICAL TIP SINGLE FINGER
  • Thread Series Designator: UNEF
  • Finger Accommodation Diameter: 0.206 INCHES NOMINAL SINGLE FINGER IN
Applications
  • Applications requiring Nickel Alloy Spring construction
General Description

The Jack,telephone, cataloged under National Stock Number 5935-00-889-7895, is classified within Federal Supply Class 5935 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Switchcraft Inc.. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5935-00-889-7895
Primary Part NumberS12B
Item NameJack,telephone
FSC / FSG5935 / 59 — No Item Name Available
ManufacturerSwitchcraft Inc.
StatusACTIVE
Surface TreatmentTIN TERMINAL
MaterialNICKEL ALLOY SPRING
Nominal Thread Size0.375 INCHES IN
MaterialSILVER CONTACT
Accommodated Finger TypeTHREE CONDUCTOR, SLENDER SPHERICAL TIP SINGLE FINGER
Thread Series DesignatorUNEF
Finger Accommodation Diameter0.206 INCHES NOMINAL SINGLE FINGER IN
Bushing Accommodation Hole ShapeROUND
Thread Quantity Per Inch32
Finger Accommodation Length1.094 INCHES NOMINAL SINGLE FINGER IN
Precious MaterialSILVER
MaterialPLASTIC INSULATOR
Precious Material and LocationCONTACT MATERIAL SILVER
Mounting Facility Type and Quantity1 BUSHING
MaterialCOPPER ALLOY BODY
MaterialCOPPER ALLOY BUSHING
Terminal TypeTAB, SOLDER LUG
Jack Contact Arrangement DesignatorJ2
Bushing Thru-Hole Accommodation Diameter0.375 INCHES NOMINAL IN
Overall Diameter0.750 INCHES NOMINAL IN
Thread Class2A A
Mounting Bushing Length0.276 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Electrical Insulation FeatureINSULATED COMPLETELY
Body StyleTHREADED BUSHING MOUNTED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5935-00-248-4734S12B INTERCHANGEABLE
Jack
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
1650-00-788-8869141670-1 INTERCHANGEABLE
Swivel Assembly,rotating Joints
Huck International, Inc
5310-00-997-1914F1240-010 INTERCHANGEABLE
Washer,spring Tension
Barnes Group Inc. Dba Associated Spring Div Associated Spring Bristol
Cross-Reference Index
Part NumberManufacturer
14-16701 Beltone Electronics Corp (USA)
S12B PRIMARY Switchcraft Inc. (USA)
1077099 L3harris Technologies, Inc. (USA)
Related Parts
5935-00-248-4734INTERCHANGEABLE
JACK
S12B
1650-00-788-8869INTERCHANGEABLE
SWIVEL ASSEMBLY,ROTATING JOINTS
141670-1
5310-00-997-1914INTERCHANGEABLE
WASHER,SPRING TENSION
F1240-010

Frequently Asked Questions

What is NSN 5935-00-889-7895?

NSN 5935-00-889-7895 is a Jack,telephone, manufactured by Switchcraft Inc., classified under FSC 5935 (No Item Name Available). Status: active.

What are the part numbers for NSN 5935-00-889-7895?

NSN 5935-00-889-7895 has 3 cross-referenced part numbers: 14-16701 (Beltone Electronics Corp), S12B (Switchcraft Inc.), 1077099 (L3harris Technologies, Inc.).

What NSN replaces 5935-00-889-7895?

There are 3 known substitutes for 5935-00-889-7895: 5935-00-248-4734, 1650-00-788-8869, 5310-00-997-1914. Verify interchangeability with system specifications before substitution.

What are the specifications of S12B?

Key specifications for S12B: Surface Treatment: TIN TERMINAL; Material: NICKEL ALLOY SPRING; Nominal Thread Size: 0.375 INCHES IN; Material: SILVER CONTACT. 26 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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